{"product_id":"accupro-a-6100033r-micro-drill-bit-size-81-solid-carbide","title":"Accupro A-6100033R Micro Drill Bit Size 81 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO A-6100033R is a size 81 micro drill bit engineered for precision drilling in tight-tolerance applications. Manufactured from solid carbide, this bit delivers the rigidity and wear resistance needed when working with hard or abrasive materials at small diameters. The 120-degree point angle provides a standard cutting geometry suited for a wide range of materials. At 0.0130 inches in diameter and 25 millimeters overall length, it is built for miniature-series work where dimensional accuracy is critical. Machinists and tool room technicians who require consistent performance at sub-0.015-inch diameters will find this bit purpose-built for that work.\u003c\/p\u003e\u003cp\u003eThis micro drill bit is used in precision machining environments including CNC machining centers, drill presses, and manual milling setups where small-diameter hole production is required. Typical applications include printed circuit board drilling, watch and instrument components, medical device parts, and fine metalwork. The solid carbide construction and spiral flute design make it appropriate for both ferrous and non-ferrous materials where chip evacuation and hole quality are priorities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for maximum rigidity and wear resistance at small diameters\u003c\/li\u003e\n\u003cli\u003eSize 81 wire gauge diameter — 0.0130 inches decimal equivalent\u003c\/li\u003e\n\u003cli\u003e120-degree standard point angle for general-purpose cutting geometry\u003c\/li\u003e\n\u003cli\u003eSpiral flute design promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eBright\/uncoated finish — no coating buildup to affect critical hole tolerances\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank, 1.00 millimeter diameter, for broad collet compatibility\u003c\/li\u003e\n\u003cli\u003eRight-hand cut for use with standard clockwise-rotating spindles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style miniature-series replacement drill bit compatible with straight-cylindrical collet systems and chucks accepting a 1.00 millimeter shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of micro drill bits should be performed by qualified machinists or tool room personnel familiar with small-diameter tooling. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the bit from the collet or chuck. Use a properly sized collet to avoid runout, which is especially critical at diameters below 0.020 inches. Do not exceed manufacturer-recommended spindle speeds for the workpiece material and bit diameter, as solid carbide micro bits are brittle and susceptible to breakage under lateral load or excessive feed rates.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 81\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0130 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 120 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.00 millimeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.80 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 25.00 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Miniature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A-6100033R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51747545710898,"sku":"A-6100033R","price":211.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7f2ed753655cc80b4cbbd906c0bbe5ce.jpg?v=1788882299","url":"https:\/\/voomisupply.com\/products\/accupro-a-6100033r-micro-drill-bit-size-81-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}